NDLI: An Intensity Ratio Method For 3D Imaging

Content Provider	IEEE Xplore Digital Library
Author	Tsui, H.T. Tang, K.C.
Copyright Year	1988
Description	Author affiliation: Chinese University of Hong Kong (Tsui, H.T.)
Abstract	3D imaging is essential for many applications of robotic vision. The conventional method of imaging by a stereo pair of cameras is laborious in computation due to the correspondence problem. Recently, a number of range finder methods based on a laser beam have been reported, but most of them involve some sort of mechanical scanning which Is often slow or fragile'. An intensity ratio method, on the other hand, requires au ordinary projector and one TV camera. It requires no mechanical scanning or laborious correspondence computation. Our intensity ratio method involves the projection of gray-level patterns onto the objects of interest. These include an uniform gray-level pattern, a staircase gray-level pattern and a rawtooth gray-level pattern. The intensity ratios between images are then used to compute the 3D coordinates of the surface points of the objects. Early experimental results on real objects are encouraging.
Starting Page	633
Ending Page	636
File Size	554384
Page Count	4
File Format	PDF
ISBN	7800030393
DOI	10.1109/ICSMC.1988.754378
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1988-08-08
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Lighting Stereo vision Layout Robot vision systems Robot kinematics Cameras Computer vision Liquid crystal devices Optical modulation Laser beams
Content Type	Text
Resource Type	Article

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